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Write two advantages and two disadvantages of friction.

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2 Answers

answered by
Advantages of friction: 1) One can walk easily on rough surface than smooth surface. 2) Moving vehicle on road can be stopped suddenly by applying brakes. 3) One can hammer nail into wall. 4) One can easily hold pen, pencil and can write on paper.

Disadvantages of friction: 1) Energy is lost due to friction. 2) It causes wear and tear in machine parts. 3) More effort is required to lift any load on a machine. 4) There is more consumption of fuel due to friction.
answered by anonymous
They change the direction  of the objects 

They change the size of the objects

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